On Wed, Jul 1, 2020, 15:32 Sean Neeley <sean.nee...@producepro.com> wrote:
> I tried switching from Java 1.8 to Java 11 to see if that makes a > difference. Now the VM Thread is using a lot less CPU: > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 2320 tomcat 20 0 4659072 47872 19904 R 99.9 0.6 22:15.16 java > 2326 tomcat 20 0 4659072 47872 19904 R 4.6 0.6 0:56.43 VM > Thread > > I tried running jstack on the processes, but I get this: > > 2320: Unable to open socket file: target process not responding or HotSpot > VM not loaded > Did you attempt to run the command as the "Tomcat user"? BTW, Oracle recommends the use of "jcmd" over "jstack". Personally, I'd give Mission Control/Flight Recorder a go.
